#include <stdio.h>
#include <ctype.h>

int main(int argc, char **argv)
{
	char *buf = "absc\t\n\r\f\va";
	while(*buf)
	{
		if(!isspace((int)*buf))
		{
			printf("%c\n", *buf);
		}
		else
		{
			printf("isspace\n");
		}
		buf++;
	}

	return 0;
}
